EP0634559A2 - Machine de forage dans le trou, actionnée par un fluide - Google Patents

Machine de forage dans le trou, actionnée par un fluide Download PDF

Info

Publication number
EP0634559A2
EP0634559A2 EP94850110A EP94850110A EP0634559A2 EP 0634559 A2 EP0634559 A2 EP 0634559A2 EP 94850110 A EP94850110 A EP 94850110A EP 94850110 A EP94850110 A EP 94850110A EP 0634559 A2 EP0634559 A2 EP 0634559A2
Authority
EP
European Patent Office
Prior art keywords
drill bit
hammer piston
drilling machine
hole drilling
cylindrical part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94850110A
Other languages
German (de)
English (en)
Other versions
EP0634559B1 (fr
EP0634559A3 (fr
Inventor
Berndt Ekwall
Martin Peterson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco Rocktech AB
Original Assignee
Atlas Copco Rocktech AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlas Copco Rocktech AB filed Critical Atlas Copco Rocktech AB
Publication of EP0634559A2 publication Critical patent/EP0634559A2/fr
Publication of EP0634559A3 publication Critical patent/EP0634559A3/fr
Application granted granted Critical
Publication of EP0634559B1 publication Critical patent/EP0634559B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons

Definitions

  • the present invention relates to a fluid driven down-the-hole drilling machine, i.e. a drilling machine driven by liquid or gas. More specifically the invention relates to a down-the-hole drilling machine provided with a backhammer for freeing a drill bit which has become stuck.
  • the present invention which is defined in the subsequent claims, aims at achieving a fluid driven down-the-hole drilling machine where the drill bit is easily freed when stuck through reverse feed of the down-the-hole drilling machine.
  • fig 1A shows the front part of a fluid driven down-the-hole drilling machine according to the invention.
  • Fig 1B shows the rear part of the down-the-hole drilling machine.
  • Fig 2 shows a section according to 2-2 in fig 1A.
  • Fig 3 shows a section according to 3-3 in fig 1A.
  • Fig 4 shows a section according to 4-4 in fig 1A.
  • the fluid driven down-the-hole drilling machine shown in the drawing comprises a housing 1 in the front end of which a drill bit 3 is arranged.
  • the drill bit is connected to the housing 1 by means of a splined coupling 11.
  • the drill bit comprises a shaft part 3 and a head part 51 provided with not shown hard metal bottons.
  • the shaft part 3 and the head part 51 are connected with each other by means of a thread coupling 52.
  • the housing 1 is at its rear end provided with an end piece 12 which by means of a thread coupling 13 is connected to a tube string 14.
  • the drill bit 3 is during drilling turned through rotation of the tube string 14, end piece 12 and housing 1 via the splined coupling 11.
  • Fluid for the driving of the down-the-hole drilling machine is supplied from a not shown pump via the channel 9 in the tube string.
  • the channel 9 thus functions as a pressure source.
  • a hammer piston 2 is movable to-and-fro in the housing 1.
  • the hammer piston is provided with a piston head 15 with a first driving surface 5.
  • the hammer piston 2 is guided in the housing 1 by the piston head 15 and a guide 18.
  • the hammer piston 2 is provided with a second driving surface 16 which is continuously pressurized via channel 17 during drilling.
  • the to-and-fro movement of the hammer piston is controlled by the valve 4 which alternately connects the driving surface 5 to the pressure source 9 or to a low pressure via channels 21, 22, slot 23, groove 24 and channel 25 to the environment for flushing of the borehole.
  • the chamber 31 around the valve 4 is continuously pressurized via channels 17 and 32. This pressure strives at moving the valve 4 to the right in the drawing for cooperation with a valve seat 33, through which the connection between the pressure source 9 and the first driving surface 5 via channel 34 is interrupted. Through this the connection via channels 21 and 22 to low pressure is opened.
  • the movement to-and-fro of valve 4 is controlled by the pressure in chamber 35 which surrounds valve 4. Pressurization of chamber 35 moves valve 4 to the left in the drawing since the pressurized surface in chamber 35 is larger than the pressurized surface in chamber 31.
  • the chamber 35 is via not shown channels connected to holes in the cylinder wall surrounding the hammer piston 2. These holes, which lie in another section than the one shown, are marked with the reference numerals 36 and 37.
  • the hammer piston 2 is at its front end formed with a cylindrical part 6. Adjacent to the cylindrical part the hammer piston is formed with a part 43 with reduced diameter. The part with reduced diameter is provided with two diametrically oppositely arranged plane surfaces 45.
  • the shaft part 3 of the drill bit is rearwardly formed with an annular section 7 which surrounds the major part of the cylindrical part 6 of the hammer piston.
  • the drill bit 3 comprises a first impact surface 41 against which the hammer piston 2 impacts during drilling.
  • the drill bit 3 furthermore comprises a second impact surface 42 against which the cylindrical part 6 can impact when the housing 1 is fed in a direction away from the drill bit 3.
  • the annular section 7 comprises a first slot 44 the width of which allows the cylindrical part 6 on the drill bit 2 to be moved into the drill bit 3 from the side when the front tube 61 of the housing 1 has been loosened at the thread coupling 62.
  • the annular section 7 furthermore comprises a second slot 46 the width of which corresponds to the distance between the two plane surfaces 45 on the part 43 with reduced diameter so that this part can pass the second slot 46 at the same time as the cylindrical part 6 is moved in through the first slot 44. Since the part 43 with reduced diameter has been made with two plane surfaces 45 the second slot 46 can be made narrower. This means that the surface of the second impact surface 42 can be made larger so that stress is reduced.
  • the drill bit 3 is mounted in the following way.
  • the shaft part 3 and the head part 51 are separated from each other and the tube 61 of the housing 1 is screwed off.
  • the hammer piston 2 protrudes from the housing 1.
  • the shaft part 3 is aligned so that the cylindrical part 6 on the hammer piston 2 can be moved into the shaft part 3 through the first slot 44 at the same time as the two plane surfaces 45 on the hammer piston 2 are held in position for passage through the second slot 46.
  • the shaft part 3 is moved on to the hammer piston 2 from the side and is pushed to the right in the drawing to the position shown in the drawing.
  • the tube 61 is pushed on to the shaft part 3 so that the splined coupling 11 is created, after which the thread coupling 62 is fastened.
  • the head part 51 is screwed on to the shaft part 3.
  • the shown fluid driven down-the-hole drilling machine works in the following way.
  • the hammer piston is driven to-and-fro as described above for impacting the drill bit 3. If the drill bit tends to become stuck the feed is reversed, i.e. the tube string 14 is driven to the right in fig 1B. Through this the cylindrical part 6 on the hammer piston 2 will impact the second impact surface 42 during the movement to-and-fro of the hammer piston 2, through which the drill bit will be impacted to become free. This operation is automatically obtained at reverse feed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Soil Working Implements (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Drilling Tools (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Centrifugal Separators (AREA)
EP94850110A 1993-07-12 1994-06-22 Machine de forage dans le trou, actionnée par un fluide Expired - Lifetime EP0634559B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9302391 1993-07-12
SE9302391A SE501364C2 (sv) 1993-07-12 1993-07-12 Vätskedriven sänkborrmaskin utformad med en uppslagare

Publications (3)

Publication Number Publication Date
EP0634559A2 true EP0634559A2 (fr) 1995-01-18
EP0634559A3 EP0634559A3 (fr) 1995-07-26
EP0634559B1 EP0634559B1 (fr) 1999-04-07

Family

ID=20390583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94850110A Expired - Lifetime EP0634559B1 (fr) 1993-07-12 1994-06-22 Machine de forage dans le trou, actionnée par un fluide

Country Status (10)

Country Link
US (1) US5488998A (fr)
EP (1) EP0634559B1 (fr)
JP (1) JP3352234B2 (fr)
AT (1) ATE178690T1 (fr)
AU (1) AU671028B2 (fr)
CA (1) CA2127235A1 (fr)
DE (1) DE69417641T2 (fr)
ES (1) ES2132368T3 (fr)
FI (1) FI105282B (fr)
SE (1) SE501364C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002040820A1 (fr) * 2000-11-15 2002-05-23 Sandvik Ab; (Publ) Marteau perforateur pneumatique de fond de trou pour le forage des roches et foret utilise
WO2004037493A1 (fr) * 2002-10-24 2004-05-06 Sandvik Tamrock Oy Corps de percussion rotatif pour machine de forage de roches presentant une surface d'impact a distance de son extremite arriere
US8215419B2 (en) 2009-05-06 2012-07-10 Atlas Copco Secoroc Llc Variable frequency control for down hole drill and method
RU2758821C2 (ru) * 2017-06-02 2021-11-02 Сандвик Интеллекчуал Проперти Аб Бурильная машина для бурения скважин и способ бурения горной породы

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5301761A (en) * 1993-03-09 1994-04-12 Ingersoll-Rand Company Pressure reversing valve for a fluid-actuated, percussive drilling apparatus
SE503851C2 (sv) * 1994-12-21 1996-09-16 Atlas Copco Rock Drills Ab Styrning av slagkolv i ett vattendrivet slagverk
US5680904A (en) * 1995-11-30 1997-10-28 Patterson; William N. In-the-hole percussion rock drill
US6499544B1 (en) * 2000-11-15 2002-12-31 Sandvik Ab Percussive down-the-hole hammer for rock drilling, and a one-way valve used therein
JP3818438B2 (ja) * 2001-12-14 2006-09-06 独立行政法人産業技術総合研究所 坑底駆動型パーカッションドリル
KR200294253Y1 (ko) * 2002-07-10 2002-11-04 임병덕 굴착용 해머비트 타격장치
US6799641B1 (en) * 2003-06-20 2004-10-05 Atlas Copco Ab Percussive drill with adjustable flow control
US7832504B2 (en) * 2005-04-27 2010-11-16 Atlas Copco Secoroc Llc Exhaust valve and bit assembly for down-hole percussive drills
FI127744B (en) * 2017-08-21 2019-01-31 Pirkan Laatupalvelu Oy Fluid driven drilling rig

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944003A (en) * 1972-04-24 1976-03-16 Bakerdrill, Inc. Bore hole air hammer
FR2411676A1 (fr) * 1977-12-19 1979-07-13 Jenne Gustav Dispositif distributeur destine a commander l'avance et le recul des machines auto-foreuses pneumatiques a percussion
DE3802391A1 (de) * 1987-02-10 1988-08-18 Abraham Gien Einrichtung zum herausholen von pneumatisch betaetigten schlagwerkzeugen aus bohrloechern

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US660411A (en) * 1900-04-13 1900-10-23 Robert Blum Dental plugger.
US1005770A (en) * 1909-11-18 1911-10-10 Amasa B Clark Apparatus for sinking tubular piles.
US1680254A (en) * 1925-12-19 1928-08-07 Sullivan Machinery Co Forging machine
US2812922A (en) * 1956-06-26 1957-11-12 Exxon Research Engineering Co Double action drifter drill
US3038548A (en) * 1957-11-06 1962-06-12 Bowen Itco Inc Hydraulically operable percussion jar
US5226487A (en) * 1990-02-07 1993-07-13 Mbs Advanced Engineering Systems Pneumopercussive machine
US5163519A (en) * 1992-02-10 1992-11-17 Florida Pneumatic Manufacturing Corp. Pneumatically driven reverse impact device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944003A (en) * 1972-04-24 1976-03-16 Bakerdrill, Inc. Bore hole air hammer
FR2411676A1 (fr) * 1977-12-19 1979-07-13 Jenne Gustav Dispositif distributeur destine a commander l'avance et le recul des machines auto-foreuses pneumatiques a percussion
DE3802391A1 (de) * 1987-02-10 1988-08-18 Abraham Gien Einrichtung zum herausholen von pneumatisch betaetigten schlagwerkzeugen aus bohrloechern

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002040820A1 (fr) * 2000-11-15 2002-05-23 Sandvik Ab; (Publ) Marteau perforateur pneumatique de fond de trou pour le forage des roches et foret utilise
WO2004037493A1 (fr) * 2002-10-24 2004-05-06 Sandvik Tamrock Oy Corps de percussion rotatif pour machine de forage de roches presentant une surface d'impact a distance de son extremite arriere
AU2003274180B2 (en) * 2002-10-24 2008-05-15 Sandvik Mining And Construction Oy Rotating and percussive shank for a rock drill machine with an impact surface a distance from its back end
US8215419B2 (en) 2009-05-06 2012-07-10 Atlas Copco Secoroc Llc Variable frequency control for down hole drill and method
RU2758821C2 (ru) * 2017-06-02 2021-11-02 Сандвик Интеллекчуал Проперти Аб Бурильная машина для бурения скважин и способ бурения горной породы

Also Published As

Publication number Publication date
DE69417641D1 (de) 1999-05-12
SE9302391L (sv) 1995-01-13
ATE178690T1 (de) 1999-04-15
CA2127235A1 (fr) 1995-01-13
FI943301A (fi) 1995-01-13
FI943301A0 (fi) 1994-07-11
US5488998A (en) 1996-02-06
DE69417641T2 (de) 1999-09-30
SE9302391D0 (sv) 1993-07-12
ES2132368T3 (es) 1999-08-16
SE501364C2 (sv) 1995-01-23
JPH0782979A (ja) 1995-03-28
JP3352234B2 (ja) 2002-12-03
AU671028B2 (en) 1996-08-08
EP0634559B1 (fr) 1999-04-07
AU6737894A (en) 1995-01-19
EP0634559A3 (fr) 1995-07-26
FI105282B (fi) 2000-07-14

Similar Documents

Publication Publication Date Title
EP0578623B1 (fr) Appareil de martelage
EP0634559B1 (fr) Machine de forage dans le trou, actionnée par un fluide
AU652496B2 (en) A pneumatic hammer
US7028785B2 (en) Pneumatic impact piercing tool
CA2329533C (fr) Dispositif de percussion
EP1802426B1 (fr) Dispositif de percussion
EP0549549A1 (fr) Perforateur de fond de trou
AU652495B2 (en) A pneumatic hammer
US8739896B2 (en) Percussion device
SE508003C2 (sv) Bergborrningsanordning med uppslagarenhet
EP0576167B1 (fr) Machine de forage de puits avec dispositif pour éviter la perte de frappe
CA2283447C (fr) Dispositif de percussion entraine par du liquide
KR20220156600A (ko) 커플링 스플라인이 구비된 섕크가 제공되어 있는 회전식 충격 유압 드릴
SE516309C2 (sv) Vätskedrivet slagverk

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE ES FR GB IE IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE ES FR GB IE IT

17P Request for examination filed

Effective date: 19951223

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19980703

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IE IT

REF Corresponds to:

Ref document number: 178690

Country of ref document: AT

Date of ref document: 19990415

Kind code of ref document: T

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69417641

Country of ref document: DE

Date of ref document: 19990512

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2132368

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040608

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20040611

Year of fee payment: 11

Ref country code: AT

Payment date: 20040611

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040616

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20040621

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040701

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050622

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050622

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050622

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050622

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050623

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060228

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050622

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060228

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050623